package home.remote.control;

import home.remote.control.util.SystemUiHider;

import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

/**
 * An example full-screen activity that shows and hides the system UI (i.e.
 * status bar and navigation/system bar) with user interaction.
 * 
 * @see SystemUiHider
 */
public class RemoteControlActivity extends Activity 
{
  private RemoteControlActivity instance = this;
  /**
   * Whether or not the system UI should be auto-hidden after
   * {@link #AUTO_HIDE_DELAY_MILLIS} milliseconds.
   */
  private static final boolean AUTO_HIDE = true;

  /**
   * If {@link #AUTO_HIDE} is set, the number of milliseconds to wait after
   * user interaction before hiding the system UI.
   */
  private static final int AUTO_HIDE_DELAY_MILLIS = 3000;

  /**
   * If set, will toggle the system UI visibility upon interaction. Otherwise,
   * will show the system UI visibility upon interaction.
   */
  private static final boolean TOGGLE_ON_CLICK = true;

  /**
   * The flags to pass to {@link SystemUiHider#getInstance}.
   */
  private static final int HIDER_FLAGS = SystemUiHider.FLAG_HIDE_NAVIGATION;

  /**
   * The instance of the {@link SystemUiHider} for this activity.
   */
  private SystemUiHider mSystemUiHider;
  
  private Button buttonOn  = null;
  private Button buttonOff = null;

  @Override
  protected void onCreate(Bundle savedInstanceState) 
  {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_remote_control);

    final View controlsView = findViewById(R.id.fullscreen_content_controls);
    final View contentView = findViewById(R.id.fullscreen_content);

    // Set up an instance of SystemUiHider to control the system UI for
    // this activity.
    mSystemUiHider = SystemUiHider.getInstance(this, contentView, HIDER_FLAGS);
    mSystemUiHider.setup();
    mSystemUiHider.setOnVisibilityChangeListener(new SystemUiHider.OnVisibilityChangeListener() 
    {
      // Cached values.
      int mControlsHeight;
      int mShortAnimTime;

      @Override
      @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
      public void onVisibilityChange(boolean visible) 
      {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) 
        {
          // If the ViewPropertyAnimator API is available
          // (Honeycomb MR2 and later), use it to animate the
          // in-layout UI controls at the bottom of the
          // screen.
          if (mControlsHeight == 0) 
          {
            mControlsHeight = controlsView.getHeight();
          }
          if (mShortAnimTime == 0) 
          {
            mShortAnimTime = getResources().getInteger(
                android.R.integer.config_shortAnimTime);
          }
          controlsView
              .animate()
              .translationY(visible ? 0 : mControlsHeight)
              .setDuration(mShortAnimTime);
        } 
        else 
        {
          // If the ViewPropertyAnimator APIs aren't
          // available, simply show or hide the in-layout UI
          // controls.
          controlsView.setVisibility(visible ? View.VISIBLE : View.GONE);
        }

        if (visible && AUTO_HIDE) 
        {
          // Schedule a hide().
          delayedHide(AUTO_HIDE_DELAY_MILLIS);
        }
      }
    });

    // Set up the user interaction to manually show or hide the system UI.
    contentView.setOnClickListener(new View.OnClickListener() 
    {
      @Override
      public void onClick(View view) 
      {
        if (TOGGLE_ON_CLICK) 
        {
          mSystemUiHider.toggle();
        } 
        else 
        {
          mSystemUiHider.show();
        }
      }
    });

    // Upon interacting with UI controls, delay any scheduled hide()
    // operations to prevent the jarring behavior of controls going away
    // while interacting with the UI.
    findViewById(R.id.button_on).setOnTouchListener(mDelayHideTouchListener);
    
    buttonOn  = (Button)findViewById(R.id.button_on);
    buttonOff = (Button)findViewById(R.id.button_off);
    buttonOn.setOnClickListener(new OnClickListener()
    {
      public void onClick(View v)
      {
        try
        {
          sendEmailMessage("{ 'operation':'turn-relay-on' }");
        }
        catch (Exception ex)
        {
          Toast.makeText(instance.getApplicationContext(), "Error:\n" + ex.toString(), Toast.LENGTH_LONG).show();
        }
      }
    });
    buttonOff.setOnClickListener(new OnClickListener()
    {
      public void onClick(View v)
      {
        try
        {
          sendEmailMessage("{ 'operation':'turn-relay-off' }");
        }
        catch (Exception ex)
        {
          Toast.makeText(instance.getApplicationContext(), "Error:\n" + ex.toString(), Toast.LENGTH_LONG).show();
        }
      }
    });
  }

  @Override
  protected void onPostCreate(Bundle savedInstanceState) 
  {
    super.onPostCreate(savedInstanceState);

    // Trigger the initial hide() shortly after the activity has been
    // created, to briefly hint to the user that UI controls
    // are available.
    delayedHide(100);
  }

  /**
   * Touch listener to use for in-layout UI controls to delay hiding the
   * system UI. This is to prevent the jarring behavior of controls going away
   * while interacting with activity UI.
   */
  View.OnTouchListener mDelayHideTouchListener = new View.OnTouchListener() 
  {
    @Override
    public boolean onTouch(View view, MotionEvent motionEvent) 
    {
      if (AUTO_HIDE) 
      {
        delayedHide(AUTO_HIDE_DELAY_MILLIS);
      }
      return false;
    }
  };

  Handler mHideHandler = new Handler();
  Runnable mHideRunnable = new Runnable() 
  {
    @Override
    public void run() 
    {
      mSystemUiHider.hide();
    }
  };

  /**
   * Schedules a call to hide() in [delay] milliseconds, canceling any
   * previously scheduled calls.
   */
  private void delayedHide(int delayMillis) 
  {
    mHideHandler.removeCallbacks(mHideRunnable);
    mHideHandler.postDelayed(mHideRunnable, delayMillis);
  }
  
  private void sendEmailMessage(String message)
  {
    Intent i = new Intent(Intent.ACTION_SEND);
    i.setType("message/rfc822");
    i.putExtra(Intent.EXTRA_EMAIL  , new String[]{"olivier.lediouris@gmail.com"});
    i.putExtra(Intent.EXTRA_SUBJECT, "PI Request");
    i.putExtra(Intent.EXTRA_TEXT   , message);
    try 
    {
      startActivity(Intent.createChooser(i, "Send mail..."));
//    Toast.makeText(RemoteControlActivity.this, "Message has been sent.", Toast.LENGTH_SHORT).show();
    } 
    catch (android.content.ActivityNotFoundException ex) 
    {
      Toast.makeText(RemoteControlActivity.this, "There is no email client installed.", Toast.LENGTH_SHORT).show();
    }    
  }
}
